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Turbos... Anyone help?
Posted: Tue Jul 08, 2003 5:31 pm
by Scorpio1
I drove a 1.4 TDI sport today and it actually felt noticeably slower than the 1.9TDI. The thing I wondered is, is the turbo on the 1.4 and 1.9 of a different size? Because the 1.4 sounds different to the 1.9. I mean the bigger engine has a 'proper' whistle. Are they different
Posted: Tue Jul 08, 2003 6:21 pm
by dub envy
I don't actually know, but maybe the bigger engine breathes more air, therefore making the turbo work harder and spool up quicker???
just an idea....
Posted: Tue Jul 08, 2003 7:04 pm
by Scorpio1
I really would like to know
Posted: Wed Jul 09, 2003 4:58 pm
by Scorpio1
Or a picture?
Posted: Wed Jul 09, 2003 6:21 pm
by Nelson_Wilbury
The 1.4 and 1.9 turbochargers are different, the 1.9's turbocharger is part of the manifold, its also obviously bigger...
Also, for those interested the ATD (engine code) version of the 1.9 has 100bhp, the AXR 101bhp
Posted: Wed Jul 09, 2003 10:20 pm
by Scorpio1
Right... I’m going to sound very thick here
but where is the 1.4 turbo connected to then?
So I take it the 1.4 has something like a T.2 and the 1.9 a T.25?
Would like detailed info of the engines but the VW site doesn't have it and did searches to no avail
Posted: Thu Jul 31, 2003 6:58 pm
by Scorpio1
Don't suppose anyone found out did they?
The VW dealer told me the 1.9 TDI is exactly the same engine they fit in the 1.9 100BHP Golf.... Same turbo too...
Posted: Fri Aug 01, 2003 8:35 am
by leonsmith
Scorpio1 wrote:Don't suppose anyone found out did they?
The VW dealer told me the 1.9 TDI is exactly the same engine they fit in the 1.9 100BHP Golf.... Same turbo too...
and in the 100bhp 1.9TDi PD Bora too by all account.
Posted: Mon Aug 11, 2003 11:56 pm
by Scorpio1
Well found out a little more on a website, so I thought I'd post some info up in case any other TDI owners out there are interested.
In the newer PD TDI engines, a variable vane turbo is used.
Apparently it's just the size, boost pressure, and ECU mapping that pushes things up. They're supposed to be good for 80,000 miles + with no problems if not abused too much.
A couple of pics:
An animated picture for a better idea
Posted: Tue Aug 12, 2003 10:05 am
by des_pd_ tdi
I was rather hoping they'd be good for 160,000 plus.
Anyway it's almost impossible not to use the turbo, it kicks in at around 1600rpm.
Posted: Tue Aug 12, 2003 11:18 am
by Scorpio1
I just hope it gives off a nice whistle!
Bit similar to the Golf's, cutting in and out, as a pose to it being there all the time like on the small engines. Opps I’ve embarrassed myself now!
Posted: Tue Aug 12, 2003 4:37 pm
by des_pd_ tdi
Oh, you'll hear it alright. My special trick is driving along in third/fourth and spinning the turbo right on the power band then let it spin down and back up again, childish for a 30 year old I know.
But very satisfying.
Posted: Tue Aug 12, 2003 4:55 pm
by mole
Indeed.
Posted: Tue Aug 12, 2003 5:22 pm
by Mikeyw
Grown up Kids these days!
Must try that 3/4th gear thing...
